A BBC spokesperson said: “Although a little earlier than anticipated, we’re looking forward to sharing these memories with our viewers and making new ones as we return the capsule to the earth so that it can be reopened in 2050 as originally planned.”

CBBC’s Newsround quoted a spokesperson for the O2 as saying the capsule was “accidentally damaged during excavations. The capsule and its contents are safely stored in our office and we’ve let the team at Blue Peter know.

“We’re going to work with them to either repair or replace the capsule and bury it again for the future.”